VTL ST-150 MB-450


I had a ST-150 on my ML Ascents and really liked the sound. I have since sold the Ascents and purchased Summits. I called Bea at VTL and she said she would not recommend the ST-150 with the Summits. She said it would not handle the speaker well. She stated to go with the 450s. Has anyone compared the sound of these two amps? I have heard that with some brands of tube amps the sound is better on the smaller wattage amps.
pal
I drove my Aerial 10t's with a St150 with great results, and they like to suck up power. But when I moved them to a larger room I lost my mind and bought the MB 450's. The 450s are similar to the 150s in sound but they have like an iron fist control of the speaker They can play at crazy sound levels and never sound stressed. I am stuck in the 70's with classic rock. I think they are a keeper for me. And the new model may make the deal on a used pair even sweeter.
Bea told me to go with the 450s because they have the signature transformers providing a better power supply. The Summits dip to 0.6 ohms at times. Even though they are efficient they still need an amp that can put out current.
I would take a look at the MB-185s, as they have the Signature tranny as well. On the pre-owned market, however, they are only going to run about $1K less than a pre-owned pair of MB-450s.